Last month, the firm launched the 'Smash Your Store' marketing campaign to promote the launch of the series. A total of 75 comic book stores took part in the scheme, each appearing on the cover of an exclusive edition of the issue, being crushed beneath Godzilla's foot.

The auction includes all of the 'Smash Your Store' covers, in addition to both standard designs by Alex Ross and Eric Powell respectively. A rare Eric Powell retailer incentive cover, a WonderCon exclusive, and four previously unreleased IDW covers signed by its staff are also included in the bundle.

Godzilla: Kingdom Of Monsters #1 is written by Eric Powell and Tracy Marsh with artwork from Phil Hester. It marks the iconic monster's return to the medium of comic books.

Bids for the variant titles can be placed through online auction site eBay.